Hello,
In one of our databases, the following schemas are showing as owned by a regular user:
 db_datareader
 db_denydatawriter
 db_owner
the other schemas though, like db_ddladmin, is owned by itself -- ddlamin.
can i simply change the schemas listed above to be owned by itself? meaning, db_datareader will be owned by db_datareader? 
thank you